Which type of detergents are preferably used in liquid dish washing?

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All of these

Anionic detergent

Non- ionic detergent

Cationic detergent

answer is C.

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Detailed Solution

Non-ionic detergents are commonly used in liquid dishwashing formulations because they are effective at removing food residues and grease, while also being gentle on the skin.
They do not contain charged particles that can react with minerals in hard water, which can cause scaling or reduce their cleaning ability.
Additionally, non-ionic detergents have a low foaming tendency, which is important in liquid dishwashing formulations to avoid excessive lather that can interfere with the cleaning process.
Cationic detergents are not used in dishwashing because they can react with anionic ingredients commonly found in dishwashing formulations, resulting in reduced cleaning effectiveness.
Anionic detergents can be used in dishwashing, but they are more commonly used in laundry detergents because they have a higher foaming tendency.

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